Enable Address Translation Service (ATS) support for the PCI root complex listed in the iort table. ATS allows PCIe devices to request an address translation before starting the dma transaction, so that devices can cache these translations in their private cache that is called as Address Translation Cache (ATC). Devices that support Page Request Interface (PRI) can also enable the feature when ATS is enabled as ATS is a prerequisite for PRI.
Signed-off-by: Vivek Gautam <vivek.gau...@arm.com> --- Platform/ARM/SgiPkg/AcpiTables/Iort.aslc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Platform/ARM/SgiPkg/AcpiTables/Iort.aslc b/Platform/ARM/SgiPkg/AcpiTables/Iort.aslc index ce8eefc585ea..fcc28a71c82e 100644 --- a/Platform/ARM/SgiPkg/AcpiTables/Iort.aslc +++ b/Platform/ARM/SgiPkg/AcpiTables/Iort.aslc @@ -133,7 +133,7 @@ ARM_EFI_ACPI_6_0_IO_REMAPPING_TABLE Iort = 0, // AllocationHints 0, // Reserved 0, // MemoryAccessFlags - EFI_ACPI_IORT_ROOT_COMPLEX_ATS_UNSUPPORTED, // AtsAttribute + EFI_ACPI_IORT_ROOT_COMPLEX_ATS_SUPPORTED, // AtsAttribute 0x0, // PciSegmentNumber }, // EFI_ACPI_6_0_IO_REMAPPING_ID_TABLE -- 2.17.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#72491): https://edk2.groups.io/g/devel/message/72491 Mute This Topic: https://groups.io/mt/81102020/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-